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首页> 外文会议>International Conference on Biology and Applied Science >Histological Study on Digestive System Development of Blacksaddled Coralgrouper, Plectropomus laevis (Lacepede, 1801) Larvae
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Histological Study on Digestive System Development of Blacksaddled Coralgrouper, Plectropomus laevis (Lacepede, 1801) Larvae

机译：黑士拉哥拉格努尔消化系统发展的组织学研究，庞特科普莫斯拉维斯（Lacepede，1801）幼虫

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Blacksaddled coralgrouper, Plectropomus laevis (Lacepede, 1801) has a high economic value in Asia-Pacific region. The purpose of this study was to know the histological of digestive system development of blacksaddled coralgrouper larvae. The larvae were obtained from natural spawning in captivity. The study was conducted from hatching to 45 Days After Hatching (DAH) by histological with Hematoxylin Eosin (HE) staining. The result showed that, the digestive system on 1 DAH larvae appeared as a straight undifferentiated tube with a small lumen, mouth and anus still did not open, yolk sack and oil globule still appeared. Mouth and mucosa cell appeared in esophagus; intestine started folding; liver and pancreas developed; yolk sack and oil globule fully absorbed on 3 DAH. Stomach divided into the mid gut and hid gut, acidophilic supra nuclear appeared on 5 DAH. Pharyngeal teeth and taste bud appeared, also microvillus in the intestine; absorption processes in the intestine become more optimal on 8 DAH. Goblet cells appeared on 12 DAH. Cardiac, fimdic stomach and pyloric sphincter appeared on 22 DAH. Gastric glands appeared on 34 DAH and continuously developed until 45 DAH. Based on these results, it can be concluded that the digestive tract of blacksaddled coralgrouper larvae started completely developed on 45 DAH.
机译：Blacksaddled coralgrouper，平滑鳃棘鲈（Lacepede，1801）在亚太地区的经济价值很高。这项研究的目的是了解blacksaddled coralgrouper幼虫消化系统发育的组织。幼虫从人工饲养自然产卵获得。这项研究是从孵化到45天孵化（DAH）通过组织学用苏木精曙红（HE）染色后进行。结果表明，对消化系统1日龄幼虫出现的未分化的直管小管腔，口和肛门还是没开，黄麻袋和油球还出现了。嘴中出现食管黏膜细胞;肠开始折叠;肝脏和胰腺发展;黄麻袋和油球完全吸收3 DAH。胃分为中肠和HID肠，嗜酸性核上出现了5 DAH。咽齿味蕾出现，也微绒毛在肠道内;在肠中的吸收过程变得更优化8 DAH。杯状细胞出现在12日龄。心脏，胃fimdic和幽门括约肌出现在22日龄。胃腺体出现在34日龄，不断地开发，直到45日龄。基于这些结果，可以得出结论，blacksaddled coralgrouper幼虫的消化道对45日龄开始完全开发。

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